Overview of Automatic Number Plate Recognition (JP version) - furufuru2013/ANPR_JP GitHub Wiki
This program is based on 'Chapter 5 Number Plate Recognition Using SVM and Neural Network' in 'Mastering OpenCV with Practical Computer Vision Projects'. But it is supported for Spanish Number Plate, so I localized for Japanese number plate. Because this original algorithm have only recognition alpha-numeric characters, now my modified program can recognize only 4 digits number. From now on, I will try to add other characters (ex. area-code, small size digits, Japanese HIRAGANA).
I think this backbone algorithm has some basic problem in Japan. This program is trying to find vertical special line to find number plate. But in Japan, there are a lot of white cars. So sometimes it can't find white number plate. I have no idea to find white number plate in white body. If you have some idea, please let me know.
Thanks.